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Headphone Amplifiers

Manufacturer

Bottlehead Crack OTL

Bottlehead Crack OTL

“ This is a review of the Crack amp driving Sennheiser HD800s. I haven't had the chance desire to audition it with any other cans. The price is for the amp ($213) and the Speedball upgrade ($110).   I've had the combo for about two years, and have several hundred hours on it. The Crack is an OTL headphone amp kit, designed for high-impedance phones. Assembly is easy, the...” --Bill Way

100% Positive Reviews
Bottlehead S.E.X. (Single-Ended eXperimenter's kit)

Bottlehead S.E.X. (Single-Ended eXperimenter's kit)

“The Bottlehead S.E.X. is the mid-level DIY tube headphone amp from Bottlehead USA. As per the very well-known Crack OTL amplifier, it's a kit that you build yourself, but it's a little more challenging than the Crack due to the extra components involved.   In short, the Crack and S.E.X. both have their own strengths, but the S.E.X. is a definite step up in overall sound (which is a...” --Loquah

100% Positive Reviews
Bottlehead Mainline

Bottlehead Mainline

“I have created a thread to discuss and compare the Bottlehead range of headphone amplifiers so I'll share a small excerpt here just abouthow the amp sounds, but I'd recommend heading over to the thread for much more information and opportunities to read other people's opinions and discuss your thoughts:...” --Loquah

100% Positive Reviews
Bottlehead Smack

Bottlehead Smack

Bottlehead Headphone Amplifier with output transformers.

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